EChart not shown every other time I change a parameter

[MarcSkovMadsen]

Panel 0.10.2
Bokeh 2.2.3

I'm trying to style the Panel components in the Fast.design style and would like to create an app show casing all the Panel components using this style. This includes the possibility to change the component parameters.

For the ECharts pane I observe a strange behavior. Every second time I change either the renderer or theme parameter the ECharts plot is not shown.

import panel as pn

pn.extension("echarts")

ACCENT_REST = "#DF3874"


def _create_echarts_plot():
    echart = {
        "tooltip": {},
        "legend": {"data": ["Sales"]},
        "xAxis": {
            "data": ["shirt", "cardign", "chiffon shirt", "pants", "heels", "socks"],
            "axisLine": {"lineStyle": {"color": "#ccc"}},
        },
        "yAxis": {
            "axisLine": {"lineStyle": {"color": "#ccc"}},
        },
        "series": [
            {
                "name": "Sales",
                "type": "bar",
                "data": [
                    1.0,
                    1.2,
                    1.4,
                    1.6,
                    1.8,
                    2.0,
                ],
                "itemStyle": {"color": "#DF3874"},
            }
        ],
        "responsive": True,
    }
    text_style = {"color": "#ccc"}
    update = ["legend", "xAxis", "yAxis"]
    for upd in update:
        echart[upd]["textStyle"] = text_style
    return echart


pn.config.sizing_mode = "stretch_width"
component = pn.pane.ECharts(
                _create_echarts_plot(), min_height=400, min_width=200, sizing_mode="stretch_both"
            )
controls = component.controls()
pn.Column(
    component, controls
).servable()